remove provider app with adb

sudo apt install android-tool-adb
   adb만 설치

lsusb
   usb 연결 기기 확인

adb devices
    adb 기기연결
    휴대폰에서 디버깅 허용

adb shell pm list packages
    패키지 목록

adb shell pm uninstall -k --user 0 [패키지 이름]
    패키지 삭제
    하나씩만 가능


패키지 이름과 앱을 매칭 시킬 수 없을 때는 패키지 매니저 설치후 조회
   

logrotate

/var/log 디렉토리 로그파일 관리


vi /etc/logrotate.conf
-------------------------------------------------------------------------------------------

# see "man logrotate" for details
# rotate log files weekly
weekly

# keep 4 weeks worth of backlogs
rotate 4

# create new (empty) log files after rotating old ones
create

# use date as a suffix of the rotated file
dateext

# uncomment this if you want your log files compressed
#compress

# RPM packages drop log rotation information into this directory
include /etc/logrotate.d

# no packages own wtmp and btmp -- we'll rotate them here
/var/log/wtmp {
    monthly
    create 0664 root utmp
        minsize 1M
    rotate 1
}

/var/log/btmp {
    missingok
    monthly
    create 0600 root utmp
    rotate 1
}

# system-specific logs may be also be configured here.

weekly 로그파일 백업 주기 

rotate no. 로그파일 개수

missingok 파일 없어도 괜춘 

dateext 로그파일 YYYYMMDD 확장자

scp file transfer

     sudo apt install openssh-client
 
보낼 때
scp -P 포트번호 파일경로 접속계정@ip주소:목적경로

scp -P 1234 /home/ehz/file.txt ehz@123.0.0.1:/home/server/

가져올 때

scp -P 포트번호 접속계정@ip주소: 원본경로 목적파일명
폴더 -r  목적파일명을 상위 폴더로

mpv player

sudo apt install mpv


mpv.io

setting

~/.config/mvp/mvp.conf
 cache="25000 KB" #네트워크 파일을 재생할 때를 위해서 추가했습니다.
 autofit-larger=50%x50%
 keep-open=yes
 ontop=yes
 geometry=50%:50%


cf

mpv.conf

#
# Example mpv configuration file
#
# Warning:
#
# The commented example options usually do _not_ set the default values. Call
# mpv with --list-options to see the default values for most options. There is
# no builtin or example mpv.conf with all the defaults.
#
#
# Configuration files are read system-wide from /usr/local/etc/mpv.conf
# and per-user from ~/.config/mpv/mpv.conf, where per-user settings override
# system-wide settings, all of which are overridden by the command line.
#
# Configuration file settings and the command line options use the same
# underlying mechanisms. Most options can be put into the configuration file
# by dropping the preceding '--'. See the man page for a complete list of
# options.
#
# Lines starting with '#' are comments and are ignored.
#
# See the CONFIGURATION FILES section in the man page
# for a detailed description of the syntax.
#
# Profiles should be placed at the bottom of the configuration file to ensure
# that settings wanted as defaults are not restricted to specific profiles.

##################
# video settings #
##################

# Start in fullscreen mode by default.
#fs=yes

# force starting with centered window
#geometry=50%:50%

# don't allow a new window to have a size larger than 90% of the screen size
#autofit-larger=90%x90%

# Do not close the window on exit.
#keep-open=yes

# Do not wait with showing the video window until it has loaded. (This will
# resize the window once video is loaded. Also always shows a window with
# audio.)
#force-window=immediate

# Disable the On Screen Controller (OSC).
#osc=no

# Keep the player window on top of all other windows.
#ontop=yes

# Specify high quality video rendering preset (for OpenGL VO only)
# Can cause performance problems with some drivers and GPUs.
#profile=opengl-hq

# Force video to lock on the display's refresh rate, and change video and audio
# speed to some degree to ensure synchronous playback - can cause problems
# with some drivers and desktop environments.
#video-sync=display-resample

# Enable hardware decoding if available. Often, this does not work with all
# video outputs, but should work well with default settings on most systems.
# If performance or energy usage is an issue, forcing the vdpau or vaapi VOs
# may or may not help.
#hwdec=auto

##################
# audio settings #
##################

# Specify default audio device. You can list devices with: --audio-device=help
# The option takes the device string (the stuff between the '...').
#audio-device=alsa/default

# Do not filter audio to keep pitch when changing playback speed.
#audio-pitch-correction=no

# Output 5.1 audio natively, and upmix/downmix audio with a different format.
#audio-channels=5.1
# Disable any automatic remix, _if_ the audio output accepts the audio format.
# of the currently played file. See caveats mentioned in the manpage.
# (The default is "auto-safe", see manpage.)
#audio-channels=auto

##################
# other settings #
##################

# Pretend to be a web browser. Might fix playback with some streaming sites,
# but also will break with shoutcast streams.
#user-agent="Mozilla/5.0"

# cache settings
#
# Use 150MB input cache by default. The cache is enabled for network streams only.
#cache-default=153600
#
# Use 150MB input cache for everything, even local files.
#cache=153600
#
# Disable the behavior that the player will pause if the cache goes below a
# certain fill size.
#cache-pause=no
#
# Read ahead about 5 seconds of audio and video packets.
#demuxer-readahead-secs=5.0
#
# Raise readahead from demuxer-readahead-secs to this value if a cache is active.
#cache-secs=50.0

# Display English subtitles if available.
#slang=en

# Play Finnish audio if available, fall back to English otherwise.
#alang=fi,en

# Change subtitle encoding. For Arabic subtitles use 'cp1256'.
# If the file seems to be valid UTF-8, prefer UTF-8.
# (You can add '+' in front of the codepage to force it.)
#sub-codepage=cp1256

# You can also include other configuration files.
#include=/path/to/the/file/you/want/to/include

############
# Profiles #
############

# The options declared as part of profiles override global default settings,
# but only take effect when the profile is active.

# The following profile can be enabled on the command line with: --profile=eye-cancer

#[eye-cancer]
#sharpen=5

input.conf

# mpv keybindings
#
# Location of user-defined bindings: ~/.config/mpv/input.conf
#
# Lines starting with # are comments. Use SHARP to assign the # key.
# Copy this file and uncomment and edit the bindings you want to change.
#
# List of commands and further details: DOCS/man/input.rst
# List of special keys: --input-keylist
# Keybindings testing mode: mpv --input-test --force-window --idle
#
# Use 'ignore' to unbind a key fully (e.g. 'ctrl+a ignore').
#
# Strings need to be quoted and escaped:
#   KEY show-text "This is a single backslash: \\ and a quote: \" !"
#
# You can use modifier-key combinations like Shift+Left or Ctrl+Alt+x with
# the modifiers Shift, Ctrl, Alt and Meta (may not work on the terminal).
#
# The default keybindings are hardcoded into the mpv binary.
# You can disable them completely with: --no-input-default-bindings

# Developer note:
# On compilation, this file is baked into the mpv binary, and all lines are
# uncommented (unless '#' is followed by a space) - thus this file defines the
# default key bindings.

# If this is enabled, treat all the following bindings as default.
#default-bindings start

#MBTN_LEFT     ignore              # don't do anything
#MBTN_LEFT_DBL cycle fullscreen    # toggle fullscreen on/off
#MBTN_RIGHT    cycle pause         # toggle pause on/off

# Mouse wheels, touchpad or other input devices that have axes
# if the input devices supports precise scrolling it will also scale the
# numeric value accordingly
#WHEEL_UP      seek 10
#WHEEL_DOWN    seek -10
#WHEEL_LEFT    add volume -2
#WHEEL_RIGHT   add volume 2

## Seek units are in seconds, but note that these are limited by keyframes
#RIGHT seek  5
#LEFT  seek -5
#UP    seek  60
#DOWN  seek -60
# Do smaller, always exact (non-keyframe-limited), seeks with shift.
# Don't show them on the OSD (no-osd).
#Shift+RIGHT no-osd seek  1 exact
#Shift+LEFT  no-osd seek -1 exact
#Shift+UP    no-osd seek  5 exact
#Shift+DOWN  no-osd seek -5 exact
# Skip to previous/next subtitle (subject to some restrictions; see manpage)
#Ctrl+LEFT   no-osd sub-seek -1
#Ctrl+RIGHT  no-osd sub-seek  1
# Adjust timing to previous/next subtitle
#Ctrl+Shift+LEFT sub-step -1
#Ctrl+Shift+RIGHT sub-step 1
# Move video rectangle
#Alt+left  add video-pan-x  0.1
#Alt+right add video-pan-x -0.1
#Alt+up    add video-pan-y  0.1
#Alt+down  add video-pan-y -0.1
# Zoom/unzoom video
#Alt++     add video-zoom   0.1
#Alt+-     add video-zoom  -0.1
# Reset video zoom/pan settings
#Alt+BS set video-zoom 0 ; set video-pan-x 0 ; set video-pan-y 0
#PGUP add chapter 1                     # skip to next chapter
#PGDWN add chapter -1                   # skip to previous chapter
#Shift+PGUP seek 600
#Shift+PGDWN seek -600
#[ multiply speed 1/1.1                 # scale playback speed
#] multiply speed 1.1
#{ multiply speed 0.5
#} multiply speed 2.0
#BS set speed 1.0                       # reset speed to normal
#Shift+BS revert-seek                   # undo previous (or marked) seek
#Shift+Ctrl+BS revert-seek mark         # mark position for revert-seek
#q quit
#Q quit-watch-later
#q {encode} quit 4
#ESC set fullscreen no
#ESC {encode} quit 4
#p cycle pause                          # toggle pause/playback mode
#. frame-step                           # advance one frame and pause
#, frame-back-step                      # go back by one frame and pause
#SPACE cycle pause
#> playlist-next                        # skip to next file
#ENTER playlist-next                    # skip to next file
#< playlist-prev                        # skip to previous file
#O no-osd cycle-values osd-level 3 1    # cycle through OSD mode
#o show-progress
#P show-progress
#i script-binding stats/display-stats
#I script-binding stats/display-stats-toggle
#z add sub-delay -0.1                   # subtract 100 ms delay from subs
#Z add sub-delay +0.1                   # add
#x add sub-delay +0.1                   # same as previous binding (discouraged)
#ctrl++ add audio-delay 0.100           # this changes audio/video sync
#ctrl+- add audio-delay -0.100
#9 add volume -2
#/ add volume -2
#0 add volume 2
#* add volume 2
#m cycle mute
#1 add contrast -1
#2 add contrast 1
#3 add brightness -1
#4 add brightness 1
#5 add gamma -1
#6 add gamma 1
#7 add saturation -1
#8 add saturation 1
#Alt+0 set window-scale 0.5
#Alt+1 set window-scale 1.0
#Alt+2 set window-scale 2.0
# toggle deinterlacer (automatically inserts or removes required filter)
#d cycle deinterlace
#r add sub-pos -1                       # move subtitles up
#R add sub-pos +1                       #                down
#t add sub-pos +1                       # same as previous binding (discouraged)
#v cycle sub-visibility
# stretch SSA/ASS subtitles with anamorphic videos to match historical
#V cycle sub-ass-vsfilter-aspect-compat
# switch between applying no style overrides to SSA/ASS subtitles, and
# overriding them almost completely with the normal subtitle style
#u cycle-values sub-ass-override "force" "no"
#j cycle sub                            # cycle through subtitles
#J cycle sub down                       # ...backwards
#SHARP cycle audio                      # switch audio streams
#_ cycle video
#T cycle ontop                          # toggle video window ontop of other windows
#f cycle fullscreen                     # toggle fullscreen
#s async screenshot                     # take a screenshot
#S async screenshot video               # ...without subtitles
#Ctrl+s async screenshot window         # ...with subtitles and OSD, and scaled
#Alt+s screenshot each-frame            # automatically screenshot every frame
#w add panscan -0.1                     # zoom out with -panscan 0 -fs
#W add panscan +0.1                     #      in
#e add panscan +0.1                     # same as previous binding (discouraged)
# cycle video aspect ratios; "-1" is the container aspect
#A cycle-values video-aspect "16:9" "4:3" "2.35:1" "-1"
#POWER quit
#PLAY cycle pause
#PAUSE cycle pause
#PLAYPAUSE cycle pause
#STOP quit
#FORWARD seek 60
#REWIND seek -60
#NEXT playlist-next
#PREV playlist-prev
#VOLUME_UP add volume 2
#VOLUME_DOWN add volume -2
#MUTE cycle mute
#CLOSE_WIN quit
#CLOSE_WIN {encode} quit 4
#E cycle edition                        # next edition
#l ab-loop                              # Set/clear A-B loop points
#L cycle-values loop-file "inf" "no"    # toggle infinite looping
#ctrl+c quit 4
#DEL script-binding osc/visibility      # cycle OSC display
#ctrl+h cycle-values hwdec "auto" "no"  # cycle hardware decoding
#F8 show_text ${playlist}               # show playlist
#F9 show_text ${track-list}             # show list of audio/sub streams

# Apple Remote section
#AR_PLAY cycle pause
#AR_PLAY_HOLD quit
#AR_CENTER cycle pause
#AR_CENTER_HOLD quit
#AR_NEXT seek 10
#AR_NEXT_HOLD seek 120
#AR_PREV seek -10
#AR_PREV_HOLD seek -120
#AR_MENU show-progress
#AR_MENU_HOLD cycle mute
#AR_VUP add volume 2
#AR_VUP_HOLD add chapter 1
#AR_VDOWN add volume -2
#AR_VDOWN_HOLD add chapter -1

#
# Legacy bindings (may or may not be removed in the future)
#
#! add chapter -1                       # skip to previous chapter
#@ add chapter 1                        #         next

#
# Not assigned by default
# (not an exhaustive list of unbound commands)
#

# ? add sub-scale +0.1                  # increase subtitle font size
# ? add sub-scale -0.1                  # decrease subtitle font size
# ? cycle angle                         # switch DVD/Bluray angle
# ? cycle sub-forced-only               # toggle DVD forced subs
# ? cycle program # cycle transport stream programs
# ? stop                                # stop playback (quit or enter idle mode)

firewall ufw settings 방화벽 ufw 설정

sudo ufw allow 포트
deny 포트
allow from 아이피주소
deny from 아이피 주소

unzip 한글 깨짐 인코딩

unzip -O cp949

install min-vid firefox

https://testpilot.firefox.com/files/@min-vid/latest

ssh client

ssh 아이디@주소 -p 포트
접속이 안될경우
서버측
/etc/host.allow
/etc/host.deny
에서 허가, 거부 설정

change capslock into ctrl with xmodmap

vi ~/.Xmodmap



!
! change capslock into ctrl
!
keycode 66 = Control_L
clear Lock
add Control = Control_L
keycode 117 = Caps_Lock
add Lock = Caps_Lock

grub settings

sudo vi /etc/default/grub

#GRUB_HIDDEN_TIMEOUT=0



주석 해제

sudo update-grub

linux laptop power management

tlp
sudo apt install tlp tlp-rdw
sudo tlp satart

tlp-rdw
radio management

touchpad scroll speed

with netural scroll negative~1

synclient VertScrollDelta=-80 HorizScrollDelta=-80

16.04 gnome touchpad tab to click

gsettings set org.gnome.desktop.peripherals.touchpad tap-to-click true 

from https://askubuntu.com/questions/971517/synaptics-touchpad-tap-to-click-is-not-working-in-ubuntu-16-04-lts-gnome/971519

16.04 steam 오류

STEAM_RUNTIME is enabled automatically Installing breakpad exception handler for appid(steam)/version(0) libGL error: unable to load driver: radeonsi_dri.so libGL error: driver pointer missing libGL error: failed to load driver: radeonsi libGL error: unable to load driver: swrast_dri.so libGL error: failed to load driver: swrast

일때 amd gpu와 라이브러리가 호환 되지 않아서 생기는 문제

~/.steam/steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/
후
libstdc++.so.6 파일 삭제

rm libstdc++.so.6

firefox 상단탭 제거

firefox 주소창
about:support
프로필 저장폴더
새로운 디렉토리 chrome
새로운 파일 userChrome.css
#tabbrowser-tabs { visibility: collapse !important; }
저장